CN111266467A

CN111266467A - Rotary die

Info

Publication number: CN111266467A
Application number: CN202010226162.2A
Authority: CN
Inventors: 周海舰
Original assignee: Foroll Industrial Jiaxing Co ltd
Current assignee: Foroll Industrial Jiaxing Co ltd
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2020-06-12

Abstract

The invention discloses a rotary die, which comprises a lower die holder and an upper die holder, wherein the upper die holder is provided with an upper die, the lower die holder is rotatably connected with a rotating shaft, the rotating shaft is provided with a lower die and a gear tooth, the gear tooth is arranged below the lower die holder, the lower die is arranged between the lower die holder and the upper die holder, the lower die holder is provided with a first sliding block and a second sliding block, the first sliding block is slidably connected with a first sliding rail, the second sliding block is slidably connected with a second sliding rail, a rack meshed with the gear tooth is arranged between the second sliding rail and the first sliding rail, and a clutch sleeved on the rotating shaft is embedded on the gear tooth; the lower die is provided with a plurality of forming stations which are distributed in an annular array at equal intervals around the central axis of the rotating shaft, and forming die heads matched with the forming stations one by one are arranged above the forming stations. This mould is through arranging multichannel process annular, realizes the station by rotatory mode and switches, reaches the replacement between each punching press station, and the whole occupation space of mould is little, and is low to the type selection requirement of stamping equipment, and it is more convenient to operate.

Description

Rotary die

Technical Field

The invention relates to the technical field of die manufacturing, in particular to a rotary die.

Background

The existing part of the sheet metal part formed by the die in a stamping mode can not be formed in a one-time mode, and multiple pre-stamping processes are needed to enable the sheet metal part to be formed step by step, so that the final product is high in forming precision, not easy to damage and high in production quality. However, in such operations, a plurality of pre-stamping dies need to be arranged on the same straight line, and the dies are also designed into a progressive die structure, so that the whole length is large, the occupied space is large, the requirement on stamping equipment is high, and the whole effect is not good. Accordingly, the invention provides a rotary die.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a rotary die, which realizes station switching by a rotary mode through annularly arranging a plurality of processes, achieves replacement among all stamping stations, has small overall occupied space, low requirement on type selection of stamping equipment and more convenient operation.

In order to solve the technical problem, the invention aims to realize that: the invention relates to a rotary die, which comprises a lower die holder and an upper die holder which is arranged above the lower die holder and reciprocates up and down, wherein a guide pillar is arranged between the upper die holder and the lower die holder, an upper die is arranged on the upper die holder, a rotating shaft is rotatably connected on the lower die holder, a lower die and gear teeth which rotate along with the rotating shaft are arranged on the rotating shaft, the gear teeth are arranged below the lower die holder, the lower die is arranged between the lower die holder and the upper die holder, a first sliding block and a second sliding block are arranged on the lower die holder, a first sliding rail is slidably connected onto the first sliding block, a second sliding rail is slidably connected onto the second sliding block, a rack which is meshed with the gear teeth is arranged between the second sliding rail and the first sliding rail, and a clutch which is sleeved on the rotating shaft is embedded on; the lower die is provided with a plurality of forming stations distributed in an annular array at equal intervals around the central axis of the rotating shaft, and forming die heads which are matched with the forming stations one by one and arranged on the upper die are arranged above the forming stations.

The invention is further configured to: and one end of the first sliding rail, which is not connected with the rack, is provided with an extension spring, the extension spring is fixedly connected with the lower die holder, and one end of the second sliding rail, which is not connected with the rack, is provided with a traction cable.

The invention is further configured to: one end of the traction cable is connected with the second slide rail, and the other end of the traction cable is connected with the upper die base.

The invention is further configured to: the lower die base is provided with a guide wheel frame, the guide wheel frame is connected with a guide wheel in a rotating mode, and the traction cable is connected to the guide wheel in a transmission mode.

The invention is further configured to: the indexing pin assembly is arranged close to the lower die; the indexing pin assembly comprises an indexing seat, a sliding cavity is arranged in the indexing seat, an indexing pin with the end part extending out of the cavity and extending towards the direction of the lower die is connected in the sliding cavity in a sliding mode, and a compression spring with one end abutting against the indexing pin is embedded in the sliding cavity; the lower die is disc-shaped, the outer wall surface of the lower die is provided with a plurality of indexing grooves for embedding the end parts of the indexing pins and realizing butt joint, and the indexing grooves are distributed in an annular array at equal intervals around the central axis of the lower die.

In conclusion, the invention has the following beneficial effects: according to the rotary die, the traction cable on the die is driven to pull the rack through the ascending movement of the punch, the rack drives the gear teeth to rotate, the gear drives the lower die to synchronously rotate through the rotating shaft, the rotation switching between the punching stations on the lower die is realized, and the arrangement of the clutch is combined, so that the rack cannot be driven to rotate by the lower die in the resetting process, and the unidirectional rotation effect is achieved; and the arrangement of the indexing pin matched with the indexing groove ensures that the rotation angles at each time are consistent, thereby playing the indexing role.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic diagram of a portion of the structure of the present invention;

FIG. 3 is a schematic view of a partial structure of the present invention;

FIG. 4 is a schematic structural view of the present invention embodying gear teeth and clutch;

fig. 5 is a schematic diagram of a construction embodying the indexing pin assembly of the present invention.

Detailed Description

In order that those skilled in the art will better understand the novel teachings of the present invention, preferred embodiments of the present invention are described below with reference to specific examples, but it should be understood that these descriptions are only intended to further illustrate the features and advantages of the present invention, and not to limit the patent claims of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention will be further described with reference to the accompanying drawings and preferred embodiments.

Referring to fig. 1 to 5, the rotary die of the present embodiment includes a lower die base 1 and an upper die base 2 disposed above the lower die base 1 and reciprocating up and down, a guide post 3 is disposed between the upper die base 2 and the lower die base 1, an upper die 4 is arranged on the upper die holder 2, a rotating shaft 5 is rotatably connected on the lower die holder 1, a lower die 6 and gear teeth 7 which rotate along with the rotating shaft 5 are arranged on the rotating shaft 5, the gear teeth 7 are arranged below the lower die holder 1, the lower die 6 is arranged between the lower die holder 1 and the upper die holder 2, the lower die holder 1 is provided with a first slide block 8 and a second slide block 9, a first slide rail 10 is connected onto the first slide block 8 in a sliding manner, a second slide rail 11 is connected onto the second slide block 9 in a sliding manner, a rack 12 meshed with the gear teeth 7 is arranged between the second slide rail 11 and the first slide rail 10, and a clutch 13 sleeved on the rotating shaft 5 is embedded on the gear teeth 7; the lower die 6 is provided with a plurality of forming stations 14 which are distributed in an annular array at equal intervals around the central axis of the rotating shaft 5, and forming die heads 15 which are matched with the forming stations 14 one by one and are arranged on the upper die 4 are arranged above the forming stations 14.

In this embodiment, a plurality of step-by-step stamping dies for completing a workpiece are respectively and sequentially arranged at the position of each forming die head 15 of the upper die 4, and a forming station 14 matched with the corresponding forming die head 15 is arranged on the lower die 6. When the punch press carries the upper die holder 2 to lift, a traction force which is back to the side of the gear 7 is given to the second slide rail 11, so that the second slide rail 11 slides on the second slide block 9, the first slide rail 10 slides on the first slide block 8, the rack 12 drives the meshed gear teeth 7 to rotate, and the gear teeth 7 are linked with the upper rotating shaft 5 and the lower die 6 on the rotating shaft 5 to rotate, so that one-station switching is realized; when the punch press carries the upper die holder 2 to descend, a traction force which is back to the side of the gear 7 is given to the first slide rail 10, so that the second slide rail 11 slides on the second slide block 9, the first slide rail 10 slides on the first slide block 8, and the gear teeth 7 are internally provided with a clutch, so that the gear teeth can rotate just before, but the gear teeth 7 cannot rotate after the motion direction of the rack 12 is changed, and the effect of unidirectional rotation is achieved.

Furthermore, an extension spring 16 is arranged at one end of the first slide rail 10, which is not connected with the rack 12, the extension spring 16 is fixedly connected with the lower die holder 1, and a traction cable 17 is arranged at one end of the second slide rail 11, which is not connected with the rack 12. In the above operation, the traction force is conveniently applied to the second slide rail 11 by adding the traction cable 17, and the extension of the extension spring 16 is used for automatically resetting the rack 12, so that the operation is convenient and the applied power source is reduced.

Further, the one end and the second slide rail 11 of haulage cable 17 are connected, the other end is connected with upper die base 2, through being connected to upper die base 2 with haulage cable 17, realize need not external power supply that provides traction force, and the power supply is provided by the punch press, and the structure is simpler to link error-free between each mechanism, operate more accurately.

Furthermore, a guide wheel frame 18 is arranged on the lower die holder 1, a guide wheel 19 is rotatably connected to the guide wheel frame 18, the traction cable 17 is in transmission connection with the guide wheel 19, and the guide wheel frame 18 is matched with the guide wheel 19 to achieve guiding and auxiliary transmission effects on the traction cable 17, so that power transmission is facilitated.

Further, an indexing pin assembly 20 provided adjacent to the lower die 6; the indexing pin assembly 20 comprises an indexing seat 21, a sliding cavity 22 is arranged in the indexing seat 21, an indexing pin 23 with the end part extending out of the cavity and extending towards the direction of the lower die 6 is connected in the sliding cavity 22 in a sliding mode, and a compression spring 24 with one end abutting against the indexing pin 23 is embedded in the sliding cavity 22; the lower die 6 is disc-shaped, a plurality of indexing grooves 25 for embedding the end parts of the indexing pins 23 and realizing abutting are formed in the outer wall surface of the lower die 6, and the indexing grooves 25 are distributed around the central axis of the lower die 6 in an annular array at equal intervals. When the gear 7 is driven to rotate by the rack 12 each time, a small error exists in the rotation angle of the gear, which affects the upper die and the lower die to complete the punching of the workpiece, but the error can be guided after the indexing pin 23 is matched with the indexing groove 25, so that the upper die and the lower die are matched and matched, the position punched on the workpiece is more accurate, the consistency of the rotation angle of the lower die 6 each time is ensured, and the indexing effect is achieved; the compression spring 24 is provided to reset the index pin 23, so as to prevent the index pin from being partially pushed into the sliding cavity 22.

According to the rotary die, the traction cable on the die is driven to pull the rack through the ascending movement of the punch, the rack drives the gear teeth to rotate, the gear drives the lower die to synchronously rotate through the rotating shaft, the rotation switching between the punching stations on the lower die is realized, and the arrangement of the clutch is combined, so that the rack cannot be driven to rotate by the lower die in the resetting process, and the unidirectional rotation effect is achieved; and the arrangement of the indexing pin matched with the indexing groove ensures that the rotation angles at each time are consistent, thereby playing the indexing role.

Unless otherwise specified, in the present invention, if there is an orientation or positional relationship indicated by terms of "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., based on the orientation or positional relationship actually shown, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are for illustrative purposes only, and should not be construed as limiting the present patent, it is possible for those skilled in the art to combine the embodiments and understand the specific meanings of the above terms according to specific situations.

Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass, for example, being fixedly connected, detachably connected, or integrally connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims

1. The utility model provides a rotary die, includes the die holder and establishes the top of die holder and make up-and-down motion's upper die base, the upper die base with be equipped with the guide pillar between the die holder, be equipped with mould, its characterized in that on the upper die base: the lower die base is rotatably connected with a rotating shaft, a lower die and gear teeth which rotate along with the rotating shaft are arranged on the rotating shaft, the gear teeth are arranged below the lower die base, the lower die is arranged between the lower die base and the upper die base, a first sliding block and a second sliding block are arranged on the lower die base, a first sliding rail is connected onto the first sliding block in a sliding mode, a second sliding rail is connected onto the second sliding block in a sliding mode, a rack which is meshed with the gear teeth is arranged between the second sliding rail and the first sliding rail, and a clutch which is sleeved on the rotating shaft is embedded on the gear teeth; the lower die is provided with a plurality of forming stations distributed in an annular array at equal intervals around the central axis of the rotating shaft, and forming die heads which are matched with the forming stations one by one and arranged on the upper die are arranged above the forming stations.

2. The rotary die of claim 1, wherein: and one end of the first sliding rail, which is not connected with the rack, is provided with an extension spring, the extension spring is fixedly connected with the lower die holder, and one end of the second sliding rail, which is not connected with the rack, is provided with a traction cable.

3. The rotary die of claim 2, wherein: one end of the traction cable is connected with the second slide rail, and the other end of the traction cable is connected with the upper die base.

4. The rotary die of claim 3, wherein: the lower die base is provided with a guide wheel frame, the guide wheel frame is connected with a guide wheel in a rotating mode, and the traction cable is connected to the guide wheel in a transmission mode.

5. The rotary die according to any one of claims 1 to 4, wherein: the indexing pin assembly is arranged close to the lower die; the indexing pin assembly comprises an indexing seat, a sliding cavity is arranged in the indexing seat, an indexing pin with the end part extending out of the cavity and extending towards the direction of the lower die is connected in the sliding cavity in a sliding mode, and a compression spring with one end abutting against the indexing pin is embedded in the sliding cavity; the lower die is disc-shaped, the outer wall surface of the lower die is provided with a plurality of indexing grooves for embedding the end parts of the indexing pins and realizing butt joint, and the indexing grooves are distributed in an annular array at equal intervals around the central axis of the lower die.